Making homemade dressings can be tricky without the right tool to help mix and serve ingredients properly. Outfitted with a perforated weighted pendulum, the Zyliss Shake ‘n Pour Dressing Mixer combines salad dressing ingredients with a quick shake by pushing oil and vinegar through specialized holes to emulsify the liquids. Imperial and metric measurement markings on the bottle allow you to conveniently measure and mix with one tool. For a smooth, controlled pour, the Shake 'n Pour features a narrow no-spill spout and an air release valve, while the press-and-release button helps to seal the container for air-tight storage.